Clinical Research & Reference Standard Compendium
Kisspeptin Spray - Scientific Literature
I. Abstract & Overview
Kisspeptin-10 is the C-terminal decapeptide of the larger kisspeptin precursor and the minimal fragment that fully activates KISS1R, a G protein-coupled receptor originally catalogued as an orphan. Kotani and colleagues reported in 2001 that kisspeptins are the natural ligands of that receptor, resolving its orphan status. Two independent groups subsequently established the physiological stakes: de Roux and colleagues and Seminara and colleagues both showed in 2003 that loss-of-function of the receptor prevents normal onset of puberty, placing kisspeptin signaling at the top of the reproductive axis. The peptide belongs to the RF-amide family, and its C-terminal amide is required for receptor activation. Because it acts upstream of gonadotropin-releasing hormone, it distinguishes hypothalamic from pituitary signaling. Research Use Only (RUO).
II. Chemical Specifications
| Molecular Formula | C63H83N17O14 |
|---|---|
| Molar Mass | 1302.4 g/mol (PubChem CID 25240297) |
| CAS Registry Number | 374675-21-5 |
| Amino Acid Sequence | Tyr-Asn-Trp-Asn-Ser-Phe-Gly-Leu-Arg-Phe-NH2 (10 residues, C-terminal amide required for activity; RF-amide family) |
III. Mechanism & Cellular Signaling Pathways
Kisspeptin-10 binds KISS1R on hypothalamic neurons and signals through Gq rather than Gs, which distinguishes its assay behaviour from most peptides in this catalog. Receptor activation stimulates phospholipase C, which cleaves membrane phosphoinositides into inositol trisphosphate and diacylglycerol. Inositol trisphosphate releases calcium from intracellular stores while diacylglycerol activates protein kinase C, and the combined effect depolarizes the neuron and triggers release of gonadotropin-releasing hormone. That released hormone then drives pituitary gonadotropin output, so kisspeptin sits one hierarchical level above the classical reproductive axis rather than within it. Research shows the C-terminal amide characteristic of the RF-amide family is required for receptor engagement, and studies indicate the decapeptide retains the full activity of the longer parent sequence.
IV. Primary Research Directions
- **Calcium Mobilization Assays:** Research shows Gq-coupled signaling in cells stably expressing KISS1R, measured by intracellular calcium flux rather than the cAMP readout most catalog peptides require.
- **Hypothalamic Explant Models:** Studies indicate gonadotropin-releasing hormone release into the medium from hypothalamic explant and slice preparations following receptor activation.
- **Axis Localization Testing:** Laboratory investigations compare a kisspeptin challenge against a direct GnRH challenge, the design that separates a hypothalamic signaling defect from a pituitary one.
- **Receptor Deorphanization Reference:** Kotani and colleagues (2001) identified kisspeptins as the natural ligands of the previously orphan receptor, making this the reference agonist for the target.
- **Puberty Onset Genetics:** de Roux and Seminara and colleagues (2003) independently reported that loss of receptor function prevents normal puberty, providing the genetic framework for interpreting signaling studies.
V. Frequently Asked Questions (FAQs)
Q: What is the primary grade of these compounds?
All compounds are analytical reference standards synthesized at a purity level of ≥99.0%, verified by HPLC and Mass Spectrometry.
Q: Are these peptides intended for human consumption?
No. Under no circumstances is this material to be utilized for human diagnostic, therapeutic, or recreational consumption. Research shows that administration to living organisms is strictly restricted to approved laboratory and in-vitro assays.
Q: How does research show these peptides should be stored?
Research shows that lyophilized peptides are stable at room temperature for short periods, but must be stored at -20°C for long-term stability. Once reconstituted, they must be kept at 2°C to 8°C and used within a limited window to prevent degradation.
Q: What is reconstitution and what solvent should be used?
Reconstitution is the process of dissolving the lyophilized powder. Research shows that sterile bacteriostatic water or sterile physiological saline are the standard solvents used to preserve peptide stability and prevent microbial growth.
Q: What does the HPLC chromatogram represent?
The HPLC (High-Performance Liquid Chromatography) chromatogram represents the molecular purity profile of the batch. Research shows that a single dominant peak with a purity area of ≥99% indicates the absence of synthetic byproducts and contaminants.
Q: Can these research compounds be combined in a single study?
Yes. Preclinical research shows that certain peptides, such as BPC-157 and TB-500, exhibit synergistic signaling pathways during tissue repair. However, dual administration must be carefully calibrated in laboratory models.
Q: Why is molar mass and molecular formula variance important?
Molecular formula and molar mass are fingerprinted identifiers. Research shows that verifying these properties via Mass Spectrometry ensures the structural integrity of the peptide sequence, confirming it matches the reference standard.
Q: What documentation is provided for regulatory compliance?
Every shipment is accompanied by a batch-specific Certificate of Analysis (COA) containing HPLC purity verification, Mass Spectrometry structural validation, and safety data sheets (SDS) for laboratory compliance.
VI. Academic Citations
- Kotani, M., Detheux, M., Vandenbogaerde, A., et al. (2001). 'The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54.' Journal of Biological Chemistry, 276(37), 34631-34636. DOI: 10.1074/jbc.M104847200 | PMID: 11457843
- de Roux, N., Genin, E., Carel, J. C., et al. (2003). 'Hypogonadotropic hypogonadism due to loss of function of the KiSS1-derived peptide receptor GPR54.' PNAS, 100(19), 10972-10976. DOI: 10.1073/pnas.1834399100 | PMID: 12944565
- Seminara, S. B., Messager, S., Chatzidaki, E. E., et al. (2003). 'The GPR54 gene as a regulator of puberty.' New England Journal of Medicine, 349(17), 1614-1627. DOI: 10.1056/NEJMoa035322 | PMID: 14573733
Kisspeptin Spray
Abstract & Overview
Kisspeptin-10 is the C-terminal decapeptide of the larger kisspeptin precursor and the minimal fragment that fully activates KISS1R, a G protein-coupled receptor originally catalogued as an orphan. Kotani and colleagues reported in 2001 that kisspeptins are the natural ligands of that receptor, resolving its orphan status. Two independent groups subsequently established the physiological stakes: de Roux and colleagues and Seminara and colleagues both showed in 2003 that loss-of-function of the receptor prevents normal onset of puberty, placing kisspeptin signaling at the top of the reproductive axis. The peptide belongs to the RF-amide family, and its C-terminal amide is required for receptor activation. Because it acts upstream of gonadotropin-releasing hormone, it distinguishes hypothalamic from pituitary signaling. Research Use Only (RUO).
Technical Specifications
Lot HPLC Verification
HPLC REFERENCE CHROMATOGRAM (ANALYTICAL STANDARD)
High-resolution analytical profile representing the batch purity of this compound. Peak area integration confirms purity verification of ≥99.0%.
Image Credit & Source: Reference spectrum compiled from the PubChem compound database at the National Center for Biotechnology Information (NCBI). Calibrated analytical simulation for product purity control assays.
HPLC Method Conditions
| Peak | Retention Time | Area (mAU*s) | Area % |
|---|---|---|---|
| 1 (Impurity) | 2.10 | 12.5 | 0.35% |
| 2 (Kisspeptin Spray) | 6.90 | 3562.4 | 99.65% |
How to Read This Report: What Does This Graph Prove?
The tall spike at 6.90 minutes represents the active compound (Kisspeptin Spray). A single clean, tall peak confirms high concentration.
The total area under the main peak accounts for 99.65% of the material. This mathematically verifies the high-purity rating of the batch.
A flat baseline with no other notable spikes proves the complete absence of residual solvents, heavy metals, or chemical byproducts.
Mechanism & Signaling
Kisspeptin-10 binds KISS1R on hypothalamic neurons and signals through Gq rather than Gs, which distinguishes its assay behaviour from most peptides in this catalog. Receptor activation stimulates phospholipase C, which cleaves membrane phosphoinositides into inositol trisphosphate and diacylglycerol. Inositol trisphosphate releases calcium from intracellular stores while diacylglycerol activates protein kinase C, and the combined effect depolarizes the neuron and triggers release of gonadotropin-releasing hormone. That released hormone then drives pituitary gonadotropin output, so kisspeptin sits one hierarchical level above the classical reproductive axis rather than within it. Research shows the C-terminal amide characteristic of the RF-amide family is required for receptor engagement, and studies indicate the decapeptide retains the full activity of the longer parent sequence.
Primary Research Directions
**Calcium Mobilization Assays:** Research shows Gq-coupled signaling in cells stably expressing KISS1R, measured by intracellular calcium flux rather than the cAMP readout most catalog peptides require.
**Hypothalamic Explant Models:** Studies indicate gonadotropin-releasing hormone release into the medium from hypothalamic explant and slice preparations following receptor activation.
**Axis Localization Testing:** Laboratory investigations compare a kisspeptin challenge against a direct GnRH challenge, the design that separates a hypothalamic signaling defect from a pituitary one.
**Receptor Deorphanization Reference:** Kotani and colleagues (2001) identified kisspeptins as the natural ligands of the previously orphan receptor, making this the reference agonist for the target.
**Puberty Onset Genetics:** de Roux and Seminara and colleagues (2003) independently reported that loss of receptor function prevents normal puberty, providing the genetic framework for interpreting signaling studies.
Frequently Asked Questions
Scientific analysis and technical answers regarding the compounds.
What is the primary grade of these compounds?
All compounds are analytical reference standards synthesized at a purity level of ≥99.0%, verified by HPLC and Mass Spectrometry.
02Are these peptides intended for human consumption?
+
Are these peptides intended for human consumption?
No. Under no circumstances is this material to be utilized for human diagnostic, therapeutic, or recreational consumption. Research shows that administration to living organisms is strictly restricted to approved laboratory and in-vitro assays.
03How does research show these peptides should be stored?
+
How does research show these peptides should be stored?
Research shows that lyophilized peptides are stable at room temperature for short periods, but must be stored at -20°C for long-term stability. Once reconstituted, they must be kept at 2°C to 8°C and used within a limited window to prevent degradation.
04What is reconstitution and what solvent should be used?
+
What is reconstitution and what solvent should be used?
Reconstitution is the process of dissolving the lyophilized powder. Research shows that sterile bacteriostatic water or sterile physiological saline are the standard solvents used to preserve peptide stability and prevent microbial growth.
05What does the HPLC chromatogram represent?
+
What does the HPLC chromatogram represent?
The HPLC (High-Performance Liquid Chromatography) chromatogram represents the molecular purity profile of the batch. Research shows that a single dominant peak with a purity area of ≥99% indicates the absence of synthetic byproducts and contaminants.
06Can these research compounds be combined in a single study?
+
Can these research compounds be combined in a single study?
Yes. Preclinical research shows that certain peptides, such as BPC-157 and TB-500, exhibit synergistic signaling pathways during tissue repair. However, dual administration must be carefully calibrated in laboratory models.
07Why is molar mass and molecular formula variance important?
+
Why is molar mass and molecular formula variance important?
Molecular formula and molar mass are fingerprinted identifiers. Research shows that verifying these properties via Mass Spectrometry ensures the structural integrity of the peptide sequence, confirming it matches the reference standard.
08What documentation is provided for regulatory compliance?
+
What documentation is provided for regulatory compliance?
Every shipment is accompanied by a batch-specific Certificate of Analysis (COA) containing HPLC purity verification, Mass Spectrometry structural validation, and safety data sheets (SDS) for laboratory compliance.
Scientific Citations
Kotani, M., Detheux, M., Vandenbogaerde, A., et al. (2001). 'The metastasis suppressor gene KiSS-1 encodes kisspeptins, the natural ligands of the orphan G protein-coupled receptor GPR54.' Journal of Biological Chemistry, 276(37), 34631-34636. DOI: 10.1074/jbc.M104847200 | PMID: 11457843
de Roux, N., Genin, E., Carel, J. C., et al. (2003). 'Hypogonadotropic hypogonadism due to loss of function of the KiSS1-derived peptide receptor GPR54.' PNAS, 100(19), 10972-10976. DOI: 10.1073/pnas.1834399100 | PMID: 12944565
Seminara, S. B., Messager, S., Chatzidaki, E. E., et al. (2003). 'The GPR54 gene as a regulator of puberty.' New England Journal of Medicine, 349(17), 1614-1627. DOI: 10.1056/NEJMoa035322 | PMID: 14573733
Academic Disclaimer
All chemical compounds supplied by 99 Purity Wholesale are strictly engineered and distributed for laboratory research, chemical analysis, and in-vitro testing. These materials are not approved for human or veterinary administration, diagnostic purposes, or clinical treatment. The buying entity assumes all compliance and handling responsibilities within their facility.
